Display screen portion with an icon



The FIGURE is a front view of a display screen portion with an icon showing the new design.

The broken lines shown in the FIGURES are for the purpose of illustrating portions of the article, and form no part of the claimed design. The dash dot lines define the boundary of the claimed design, and form no part of the claimed design. 

CLAIM The ornamental design for a display screen portion with an icon, as shown and described. 